音标:[k'weɪsɪsətrəpɪ] ;
n.类无向性

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(75) / 评论(0) 分类 数学英语

The UN refugee agency says it is worried about the security of people living in isolated villages near the former conflict zones of Georgia. It says some 2,300 people from villages in the buffer zone between the Georgian town of Gori and the breakaw

发表于:2018-12-16 / 阅读(60) / 评论(0) 分类 VOA标准英语2008年(八月)

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(十)月

By Carol Pearson Washington, DC 29 May 2006 watch Autism Gene report Researchers at the University of Texas Southwestern have been able to genetically change mice so their behavior is similar to some people with autism. The researchers hope their di

发表于:2019-01-13 / 阅读(124) / 评论(0) 分类 2006年VOA标准英语(五月)

RACHEL MARTIN, HOST: There was a gathering here in Washington, D.C. last week that had nothing to do with the inauguration or with politics. It was an occasion for matchmaking, although not a romantic kind. Here, farmers got set up with chefs in an e

发表于:2019-01-16 / 阅读(70) / 评论(0) 分类 2017年NPR美国国家公共电台1月

By Melinda Smith Baltimore, Maryland 05 September 2006 watch report Celiac Disease For thousands of years, human beings have suffered from a genetic disorder that has received attention only in the last few decades. The disorder is called celiac dis

发表于:2019-01-26 / 阅读(137) / 评论(0) 分类 2006年VOA标准英语(九月)
学英语单词
a son of Adam
adeps benzoinatus
Alcains
alti
Andersen, Tryggve
anisophyllum
assured tenancy
bastard yellowwoods
behavioural sciences
bellows type flowmeter
Benedict-Denis' method
borbonica
breastbeam
bulldykers
capacity of cell
carinosa (philippines)
cartesian dualism
celoschisis
Chandil
cheilopogon abei
chloronitro-benzooxadiazole
chocolate nemesis
combing-coaming
configurational statistics
D(-)Ribose
deinonychus
differentiated reticulosarcoma
diffraction summation
digiprolactone
drive the center
drop brake
farino
fierding
Financial and Economic Committee
fnon
guaiacolate
Hamju-ǔp
hamway
header buffer
high-dispersion nozzle
highway ferry
him/her
IIU (input interface unit)
infraorbital groove of maxilla
insertion-type thermocouple
juergens
lanthanum(iii) trifluoromethanesulfonate
licensed vehicle
linguistic competence
main emergnecy feeder
material management system
mean molality
meet half-way
Meliosma arnottiana
mouse-holes
naked model
Nanda Bayin
nestor notabiliss
off-budget entity
oligoclase basalt
orunmila
paddocked
parachute panel
peacetime
polarographic maxima
precision machine
price bargain
PSC
pulse-frequency apectrum
Putsoa, Thaba
pyromalic acid
reimprisonments
reparking
reversing damped condition
rusty gold
sadh
seringal
single-crystal silicon
small-schools
smoke stack
snakesheads
solid rotor
somnolism
sphaeromias spinifera
spherical free progressive sound wave
stacked goal
station load factor
stertorousness
stress drop
strok
successive barrage
system services control point
to import
total draft
touch off sth
tradespersons
transfer butt
unidirectional longitudinal type marshalling station
ventral posterolateral nucleus
water infusion blesting
weighty argument
xylem bundle